What is the difference between a steam engine and an electric engine?

A steam engine can do work by harnessing the increased pressure of steam created by boiling water and using that pressure to move a piston in order to turn an axle or do other work. I’m not sure I would call an electric motor an engine…. but it turns an axle by using magnetic properties of electrons to convert electrical energy supplied to the motor into movement or other work using the attractive/repulsive forces of magnetism to turn the motor… but does not have pistons like the steam engine being moved by the air pressure from the steam.